Springfield Spring & Stamping has developed a host of innovative engineering and testing techniques to unravel the mystery surrounding the design and qualifications of magazine springs.
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Much of this work has been done in junction with some of the largest firearm and magazine manufacturers in the United States. When we first got involved with manufacturing magazine springs, we saw that the firearms industry developed, tested and qualified magazine springs with a significant amount of “black magic” or “witches brew”.
Are you Engineering & Developing Magazine Springs the Old Fashioned Way?
Magazine spring drawings we reviewed were “legacy” drawings passed down from years gone by. There was no universal spring design engineering software to help engineers qualify magazine springs on paper like traditional helical spring designs. People were working in the dark. There was no way to pre-determine things such as: spring rate, load conformity, solid height, stress, twist, stack, coefficient of friction (etc.)
The generally accepted qualification standards for magazine springs focused more on extracting the last bullet when the gun was fired for X – number of rounds. We had a decision to make. (1.) Follow the crowd and blame the designer if it did not work or (2.) Use a Sig Sigma (DAMIC) approach to create our own means of removing the dreaded “Black Magic” from these funny looking oval wound springs.
Armed with an engineering and discovery mission we dug in and started to develop measurable data and procedures for qualifying and testing magazine springs.
- We built special fixtures mounted to our standard spring force testers.
- We tested linear wound magazine spring and conical (reduced end) springs.
- We measured spring forces and solid height forces inside and outside of the magazine housing with and without dummy rounds.
- We built special set out fixtures to remove set – thus saving the customer time and money.
- We measured for twist before set out and post set. We tested springs with batch stress relieving and in-line stress relieving.
Why Choose Our Magazine Springs
All of our magazine spring engineering and testing procedures data is documented and shared with our individual customers.
We have successfully replicated numerous well-known magazine manufactures. Some of these include: Sturm Ruger, Meg-Gar, Sig Sauer, Smith & Wesson, Remington, Glock, Checkmate (etc.) We have spent in excess of $2 million on new state-of-the art, CNC-controlled wire forming equipment to support our growing production requirements for magazine springs.
As an added bonus, you can now trace any of our magazine springs to any of our customers’ final assemblies—straight through to the end-use customer. If our spring fails in a magazine, we can help our customer back up the complaint with measurable and traceable data.
In short, we have effectively turning the “witches brew” into measurable Statistical Performance Capability!
|Wire Diameter Min||Wire Diameter Max||Spring End Types|
|Closed End Ground
Closed End Unground
Open End Ground
Open End Unground Ground
|Direction of Helix||Spring Materials||Spring Shape|
High Tensile Music Wire
Pre Tin-Coated Music Wire
Hard Drawn MB
High Temperature Alloys
Dykem Color Code
Phosphate w/ Oil
Zinc (Clear and Yellow)
22000 sq=ft Facility
Cost Reduction Programs
Statistical Process Control (SPC)
Automotive FMEA and PAPP
|Production Volume Min||Production Volume Max||Industry Focus|
Specialty Production Shop
Prototype (Rapid Prototyping for Design Qualification)
|Millions of Units
Printed Circuit Boards
Lawn and Garden Tools
Air Filter Hardware
Laser Toner Recharge
|Industry Standards||File Formats|
ANSI/ASQ National Accreditation Board
American Society for Testing and Materials
International Organization for Standardization (ISO 9001:2008)
International Traffic in Arms Regulations
National Minority Supplier Development Council
Restriction of Hazardous Substances (Compliant)
Registration Evaluation Authorization and Restriction of Chemicals
Society of Automotive Engineers
Small Business Administration
|We utilize CADKEY Creator and can translate most of the common CAD files for use
AutoCAD (DWG and DXF)
Bit Mapped Graphics
Graphics Interchange Format
JPG or JEPG
Joint Photographic Experts Group
Portable Document Format
Tagged Image File Format